diff mbox series

[2/3] xfs: fix FITRIM reporting again

Message ID 172530107627.3326571.9730729950210869015.stgit@frogsfrogsfrogs (mailing list archive)
State New
Headers show
Series [1/3] xfs: fix C++ compilation errors in xfs_fs.h | expand

Commit Message

Darrick J. Wong Sept. 2, 2024, 6:33 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Don't report FITRIMming more bytes than possibly exist in the
filesystem.

Fixes: 410e8a18f8e93 ("xfs: don't bother reporting blocks trimmed via FITRIM")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_discard.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c
index bf1e3f330018..d8c4a5dcca7a 100644
--- a/fs/xfs/xfs_discard.c
+++ b/fs/xfs/xfs_discard.c
@@ -707,7 +707,7 @@  xfs_ioc_trim(
 		return last_error;
 
 	range.len = min_t(unsigned long long, range.len,
-			  XFS_FSB_TO_B(mp, max_blocks));
+			  XFS_FSB_TO_B(mp, max_blocks) - range.start);
 	if (copy_to_user(urange, &range, sizeof(range)))
 		return -EFAULT;
 	return 0;